Unionoida | Unionoidea | Unionidae | Ambleminae | Pleurobemini | Pleurobema decisum nominal species Unio medius Reeve, 1864
‘Lea’ Reeve, 1864, Conch. Icon. 16: pl. 17, sp. 77.
(misidentified reference to Unio medius Lea, 1861)
= Pleurobema decisum Taxonomic Opinions
+ Pleurobema decisum decisum (Lea, 1831) — Haas, 1969
+ Pleurobema (s.s.) decisus (Lea, 1831) — Frierson, 1927
+ Pleurobema (s.s.) decisum (Lea, 1831) — Simpson, 1914
+ Pleurobema (s.s.) decisa (Lea, 1831) — Simpson, 1900
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